Ciro Santilli  Sponsor 中国独裁统治 China Dictatorship 新疆改造中心、六四事件、法轮功、郝海东、709大抓捕、2015巴拿马文件 邓家贵、低端人口、西藏骚乱
Vertebrates minus tetrapods.
This paraphyletic subgroup is easy to form the "acquatic only" (fishes) vs "things that come out of water" (tetrapods). Though mudfish make that distinction harder.
Which kind of makes sense, why would you want for limbs unless you are going to stay out of water!


  1. Vertebrate
  2. Chordate subclade
  3. Chordate
  4. Animal subclade
  5. Animal
  6. Eukarya subclade
  7. Eukaryote
  8. Species
  9. Taxonomy
  10. Biology
  11. Natural science
  12. Science
  13. Ciro Santilli's Homepage